Stadium: Court 8 Round: 44 Ground: Hardcourt outdoor
| ITF M15 - Sozopol | 2021/10/04 08:00 | George Lazarov v Dan Radu Munteanu | 6-0,6-2 |
| ITF M25 Skopje | 2021/09/27 13:00 | Franco Emanuel Egea v Dan Radu Munteanu | 6-2,6-2 |
| ITF M15 - Bad Waltersdorf | 2021/08/30 07:00 | Dan Radu Munteanu v Kris Krawcewicz | 3-6,1-6 |
| ITF M15 - Bad Waltersdorf | 2021/08/29 07:00 | Pietro Pirolt v Dan Radu Munteanu | 1-6,6-4,6-10 |
| ITF M25 - Bacău | 2021/08/16 15:00 | Dan Radu Munteanu v Valentin Vanta | 2-6,4-6 |
| ITF M15 - Curtea de Argeș | 2021/08/09 07:00 | Cezar Cretu v Dan Radu Munteanu | 6-1,6-3 |
| ITF M15 - Curtea de Argeș | 2021/08/08 08:00 | Dragos Petre Popeanga v Dan Radu Munteanu | 2-6,1-6 |
| ITF M25 - Pitesti | 2021/08/01 08:00 | Dan Radu Munteanu v Edris Fetisleam | 0-6,1-6 |
| ITF - M25 Praag | 2021/10/03 14:00 | Artem Dubrivnyy v Dawid Taczala | 6-4,6-2 |
| ITF M25 - Eupen | 2021/09/05 09:45 | Dawid Taczala v Loic Cloes | 3-6,1-6 |
| ITF - M25 Poznan | 2021/08/25 10:50 | Dawid Taczala v Borys Zgola | 3-6,6-7 |
| ITF M15 - Łódź | 2021/08/16 09:30 | Taiyo Yamanaka v Dawid Taczala | 6-4,6-3 |
| ITF M15 - Gdynia | 2021/08/08 08:30 | Dawid Taczala v Filip Pieczonka | 6-7,0-6 |
| ITF M25 - Grodzisk Mazowiecki | 2021/08/05 07:00 | Illya Beloborodko v Dawid Taczala | 6-1,6-2 |
| ITF M25 - Grodzisk Mazowiecki | 2021/08/02 16:00 | Piotr Matuszewski v Dawid Taczala | 1-6,6-4,7-10 |
| ITF M25 - Grodzisk Mazowiecki | 2021/08/02 12:30 | Alexander Wolfschmidt v Dawid Taczala | 0-6,5-7 |